Description

13Х11Н5М5Л steel is used: for the manufacture of shaped castings for the aviation industry.

Note

According to OST 1 90090−79 chemical composition of VIAM will be sent on request.

Standards

Name

Code

Standards

Classification, nomenclature and General rules

В20

OST 1 90005-91

Castings with special properties (iron and steel)

В83

OST 1 90090-79

Bars and shapes

В32

TU 14-1-861-74

Mechanical properties

sT|s0,2, MPa

σU, MPa

d

y, %

KCU, kJ/m2

HB, MPa

Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91

-

1470-1670

-

-

-

401-495

The casting and the ceramic mold. Heating up to 1120-1140 °C, exposure of 3-5 hours, air cooling + Heating up to 1120-1140 °C, exposure for 2-3 hours, cooling to a temperature not below 950 °C lead rapidly (in oil or compressed air) + cold Treatment at -70 °C for 2 hours + Vacation at a temperature of 480-520 °C (2-3 hours), air cooling

≥1177

≥1472

≥12

≥30

≥392

401-495

Description mechanical marks

Name

Description

sT|s0,2

Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%